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Finding the Fourth Proportional to 501,203.40, 751,805.10 and 418,534.80

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Solution

The fourth proportional to 501,203.40, 751,805.10 and 418,534.80 is: 627,802.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,203.40 : 751,805.10 = 418,534.80 : x
  2. Step 2: Convert to fraction form
    501,203.40/751,805.10 = 418,534.80/x
  3. Step 3: Cross multiply
    501,203.40x = 751,805.10 × 418,534.80
  4. Step 4: Simplify right side
    501,203.40x = 314,656,597,167.48
  5. Step 5: Solve for x
    x = 314,656,597,167.48/501,203.40
  6. Step 6: Final answer
    x = 627,802.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.